The Clustoria Galaxy is one of the three galaxies in the Andromedan Hypercluster, the others being Andromeda and Qyain'Vek. Clustoria and Qyain'Vek are both dwarf elliptical galaxies. The only non-direct passage to Clustoria from Andromeda is the Core System to Clustoria Qyain'Zo gate.
Clustoria is home to the hostile and violent Blarius, a humanoid species. The Blarius dominate most of the tiny galaxy, which is approximately 1/16 of the volume of FUS space. The starship Varius was refitted with plasma cannons and experimental hull plating to be sent into the Clustoria galaxy to explore the new area and take out any hostile Blarius ships encountered.